Bar stool



FIG. 1 is a perspective view of a bar stool, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a side elevational view, the opposite side being a mirrorimage thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof; and

FIG. 6 is a bottom view thereof.

The ornamental design for a bar stool, as shown and described.